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Abstract

Bioengineering

光片成像揭示啮齿动物心脏的心脏结构

Published: March 29th, 2024

DOI:

10.3791/66707

1Department of Bioengineering, The University of Texas at Dallas, 2Center for Imaging and Surgical Innovation, The University of Texas at Dallas, 3Hamon Center for Regenerative Science and Medicine, UT Southwestern Medical Center

Abstract

光片显微镜 (LSM) 在理解心脏复杂的三维 (3D) 结构方面发挥着关键作用,为基本的心脏生理学和病理反应提供了重要的见解。在此,我们深入研究了LSM技术的开发和实施,以阐明小鼠模型中心脏的微结构。该方法将定制的 LSM 系统与组织透明化技术相结合,可减轻心脏组织内的光散射以进行体积成像。将传统的 LSM 与图像拼接和多视图反卷积方法相结合,可以捕获整个心脏。为了解决轴向分辨率和视场 (FOV) 之间固有的权衡问题,我们进一步引入了轴向扫描光片显微镜 (ASLM) 方法,以最大限度地减少离焦光并在整个传播方向上均匀地照亮心脏。同时,iDISCO等组织透明化方法增强了光的穿透力,促进了深层结构的可视化,并确保了对整个心脏心肌的全面检查。所提出的LSM与组织透明化方法的结合为研究人员解析啮齿动物心脏心脏结构提供了一个有前途的平台,为理解心脏形态发生和重塑具有巨大的潜力。

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